Geoegb william wilkinson



(No Model.)

' G. W. WLKINSON` GAR AXLE.

m@cEEEC N PETERS. PholLithographer, Waxhinglcn, D.C.

lllnirnn drainsN lfa'rniv'r @tirreno GEORGE VILLIAM VILKINSON, OFVVEST RUTLAND, VERMONT.

CAR-AXLE SPECIFICATION forming part of Letters Patent No. 319,369, dated June 2, 18815.

Application filed March 12, 1885. (No model.)

T0 all whom t may concern:

Beit known that I, GEORGE W. WILKIN- SON, of West Rutland, in the county of Rutland and State of Vermont, have invented a new and Improved Oar-Axle, of which the following is a full, clear, and exact description.

The object of my invention is to provide a practical car-axle constructed to permit the wheels to have independent movement; and the invention consists of the construction, arrangement, and combination of parts, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawing, forming part of this specification, in which the figure is a longitudinal sectional elevation of my new car-axle, the car-wheels being shown in dotted lines.

IIhe axle A is composed of two main parts, the inner shaft portion, u, and the outer shell, b, that surrounds the shaft a. The shaft a has the point a formed at one end, while the shell b has the point b .coupled to it by the coupling flanges or plates c and c', secured, respectively, (by screw-threads or otherwise) to the adjacent ends of the shell b and point b', and bolted together by the bolts d. The shaft a is secured from endwise movement in the shell b by the collar e, screwed upon the shaft a, which collar is of sli ghtly-larger diameter than the shell Z1, and is inclosed by the couplingplates c c', as shown in the drawing.

Between the end of the shell b and the collar c, I place upon the shaft a the washers ff, to protect the inner surface of the collar c from wear.

The inner end of the point b is provided with the head b2, and between this-head and the end of the shaft a and collar c, I place the washers g g', which take the friction, and which can be replaced at small cost when worn. The head b2 is made adjustable to take up the wear of the plates g g by the long setscrew h, fitted in the screw-threaded opening h', made through the center of the point b.

" The shaft a has three bearings, t', in the shell b, and the shaft has the central opening, j, and side opening, j', formed in'it for oiling the said bearings i. The collar e and plates g g and head b are oiled from the said oil-passage] through the diagonal opening Z, ymade in the plate g. When the passage j is illed with oil, escape of it is prevented by the oil-cup 7c, litted in the outer end of the shaft a, and the outer end of the shaft a is ehambered, as shown at a', to receive the oil-cup.

The oil-cup 7c is composed of the sleeve m, screwed into the end of the axle, the tube m placed in the sleeve m, and the coiled spring m2, placed upon the tube m', to act between the outer flange, m3, of the tube and the outer surface of the sleeve m. The tube m is held in the sleeve m by the flange mt, that closes the inner end of the tube m', and is larger in diameter than the sleeve m'. Several holes, a, are made in the tube m', to permit oil to pass from the tube m into the cavity a2, which will take place only when the tube m is pressed inward against the pressure of the spring m2 until the holes a pass the inner end of the sleeve m. In oiling, the tube m will be pressed inward by the spout of the oil-cup, and as suon as the oilcup is removed the spring k will automatically close the cup, so that there will be no escape of oil.

Constructed as described, it will be seen that the wheels keyed upon the points of the axle are permitted to revolve independently of each other, which is of great practical advantage in avoiding wear and tear upon the oilers and excessive friction in rounding curves. v

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The shaft portion a, provided with the collar c, in combination with the shell b, coupling-plates c c', and the point b', the couplingplate c being secured to the shell b, the plate c to the point b', substantially as described.

2. The combination, with the separate point b', shaft portion a, and coupling-plates c c', of the adjustable block or head b2, arranged substantially as and for the purposes set forth.

8. The point b', provided with the screw 71 in combination with the adjustable block b2,

substantially as described.

4. The shaft portion a of the axle,` in combination with the shell b and bearings t', said bearings being interposed between said shaft portion and shell, substantially as described.

5. rlhe shaft portion c, provided with the central oil-opening, j, and side oil-passages, j, for conducting the oil to thebearings i, substantially as described.

IOO

6. The shaft portion a, provided with the oi1passagej, in combination with the Washers g and g', the latter being` formed with the diagonal ol-passages Z, substantially as described.

5 7. The shaft portion a, provided with the sleeve m, tube m', and spring 7a, theV tube being,` placed in the sleeve m and formed with the openings n, and provided with outer and inner anges, m3 m4, substantially as and for the purposes set forth.

GEORGE WILLIAM WILKINSON.

Witnesses:

E. D. REORDON, J. E. MANLEY. 

